Lubricator



y NrrE` TATES PATENT NATHAN nl HEEr, or vALLEY, NEW JEEsEx.

LUBRicAToR.

'sPncIrIcA'i-IN forming part of Letters Patent No. 295,757, dated March'25, i884.

I Application filed September 11, 18.83. (No model.)

To a/ZZ whom, tm/Ly concern; Be it known thatl, NATHAN H. HEFT, of`Valley, in the county of Hunterdon and `State of N ew Jersey, haveinvented certain new and useful Improvements in Lubricators, of whichthe following is a` specication. y l

My invention relates to that class of lubricators (adapted for use withstationary, locomotive, and other engines) whichare automatic in theiraction, andV in which the oil is fed in regulated quantities to thesteam-pipe, whence the oil, mixed with the steam, isconveyed to thesteamchest, cylinders, or other point of application.

The operation of my lubricator is dependent upon steam-pressure. x

In the accompanying drawings, Figure l is a vertical longitudinalsection of the lubrieator. Figs. 2, 3, and 4 represent` detacheddetails.

Similar letters of reference indicate similar parts in the respectivefigures.` y A is the oil cup` or chamber,` having ahead or cap, a, andfilling-'opening A', `the cap being `united with the bottom of the cupby means of the bolt b, the upper endof the bolt beingscrewed into theboss c, formed as a part of the cap a. The lower end ofthe bolt is alsothreaded, and'receives a nut, d, which embraces or fits against thelower collar, d', of the cup. In the bolt b is cored a channel, e,

` communicating at e with the interior of the cup A. The channel e, atits `upper end, unites with a channel, e, cored in a part of the cap a,which forms a shank or connection, B. A screw-valve, B', is provided inthe port,

being seated in a thimble, a, which is packed` by a nut, a. Within theshank B is a channel, e, which leads directly into the steampipe C, theshank being tapped intothe pipe, as shown. The lower end of the bolt ispro` vided with a horizontal aperture, f, leading to the Verticalaperturef, which communicates with the interior of the drip orblow-offcock g, f ormedas a part of the nut d. y

At the upper part of the cup A, and detachably secured to the under sideof the cap a, is a Vdevice used for refining and iiltering the oilbefore-its passage to the parts to be lul 5o bricated, theoffice andoperationof which are hereinafter fully described.

The refining and filtering devices consist of a box, h, (seeparticularly Figs..2 and 3,) of any desired or suitable shape, havingits bottom and sides, oranypart thereof, made open or in skeleton-work,so as to admit oil to the interior of the box. The top of the box ispreferably closed, to prevent `the necessity of forming a ground orclose joint between the box and the under side 0f the cap, but, ifdesired, the top of the box may be open. rlhe open bottom and sides ofJ[he box are covered `with a delicate metallic gauze, z', which is thenoverlaid by one or more thicknesses of felt, f, i or other iilteringmaterial, whichiin turn is covered by another thickness of ganze, i, the

whole being covered byopen plates i, secured by screws i4. The platesmay, however, be differently attached. i

The box 7L is secured to the under surface of the cap c` by a centralbolt, k, orother suitable means.

in the sh ank B, which port kfcontinues through the depending branch c,cast as a part of the The bolt 7c is provided with a port, k', whichcommunicates with a port, 7c, i

shank B. The lower end of the branch k extends horizontally` at 7c".

At the top of the part kt isa neck, Z, in whichis aport, Z',which,

lubricant to the engine is represented by m, the screw-valve beingsituated under the horl-y The screw-valve m works zontal branch kt. in athimble, m', which is tapped into the branch 7a, and upon the thimble mis a packing-nut, n, a iiexible washer being interposed, as shown by n.The screw valve-stem is provided with a conical point, which seats atthe bottom of the port l.

As a part of, and above, the neck l is cast a `vessel,.o, it beingconnected to the shank B by the neck o. Each side of the vessel o isopen, and has a pane of glass,`o, inserted therein and secured by a nut,0. (See Fig. 4.) l The 'panes are suitably packed to make a steam-joint.The interior of lthe chamber communicates by means of a port, 0*, withthe in#` terior of the shank B. The outer end of the .horizontal portionof the port o4 is provided ythe boiler to the engine.

with an inverted conical seat, o5, receiving the end of a screw-valve,o6, which screws in a thimble, o?, packed by a nut, p. The port o*continues past the valve' o*i and leads directly into the steam-pipe..The length of the thread on the shank B is such as to allow the shankto be carried within to the center of the steampipe, so as to bring theport 0*, as also the port e, centrally of the column of steam.

The operation of my invention is as follows: The cup is first chargedwith oil, the valves B and m being closed. The port e is arranged toconfront and meet the steam owing from The valve B is now opened to itsfull capacity, and steam at full boiler-pressure enters the cup andmixes with the oil, the oil being immediately brought to a state ofebullition. rlhe steam is held back in the cup by the resistance of 'thefiltering medium in the box h, before described. Owing to the course ofthe steam through the steampipe, there is a less pressure at the exit ofthe- Consequently the oil is forced by the excess of pressure throughthe ports 7c and l', the chamber o, and port o to the steam-pipe, itbeing understood that the flow is regulated by opening the valve m, thevalve o6 being at all ordinary times open. Thepassage of the oil throughthe vessel o may be readily observed, the Water of condensation whichcollects in the vessel serving as the medium through which the effect ofvaporizing the constituents of the oil and of refining and elevating itsgrade, and also causes the separation and deposition ofthe sediment,which is carried off with the water of condensation through the cock g.The oil which passes to the engine mixed with the steam is ltered andimproved in quality.

The lubricator cannot become clogged in its Working, and the points ofleakage are reduced to the minimum by virtue of the small number ofjoints.

Having described my invention, I claim- 1. The within-described methodof lubricat-v ing, consisting in admitting steam under boil` er-pressureto a body of oil and forcing the oil through an obstructing body orfiltering medium placed in the exit-port by the difference. insteam-pressure existing at lthe two sides of said obstructing body, asset forth.

2. The within-described method of lubrica- 7o tion, consisting inforcing oil to the point of application by subjecting different parts ofthe apparatus and its connections to unequal steam-pressures.

3. The combination of an oil-cup having a port leading thereto from thesteam-pipe, a box, and a filtering medium, said box having a portleading therefrom to said steain-pipe, substantially as set forth. Y

4. The combination of an oil-cup having a port leading to its lower endfrom the steampipe, a box and filtering medium at the upper part of thecup, having a port leading therefrom, a transparent vessel in said port,and having a port leading to the steam-pipe, andsuitable valves,substantially as set forth.

5. rlhe lubricatoncupA combined with the box h, having open sides, and asuitable filter ing material, substantially as set forth.

6. The lubricator-cup combined with the box h, having open sides, and afiltering medium, and gauze, substantially as set forth.

In testimony whereof I have hereunto set my hand vand seal this 4th dayof September, 1883.

'NATHAN H. HEFT. [L s] Witnesses:

`GEORGE H. HOWARD,

Gno. P. KEATING.

